15631991 ÷ 687 
Our goal is to divide 15631991 by 687.

Step 1:
1 divided by 687 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 687

Moving on to step 2:
The number 687 fits into 15 0 times, leaving a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Include the next digit (6) from the dividend after 15, then repeat: 156 / 687

Going ahead to step 3:
When dividing 156 by 687, we get 0 with a remainder of 156.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 156 after subtracting 0 from 156.
Take the next digit (3) from the dividend and append it to 156, then repeat: 1563 / 687

Let's proceed to step 4:
When dividing 1563 by 687, we get 2 with a remainder of 189.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 1374 away from 1563, we end up with 189.
Bring next digit (1) of the dividend behind the 189 and repeat the process: 1891 / 687

Let's proceed to step 5:
687 can be fit into 1891 2 times, resulting in a remainder of 517.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
The remainder is 517 after subtracting 1374 from 1891.
Bring next digit (9) of the dividend behind the 517 and repeat the process: 5179 / 687

Moving on to step 6:
When dividing 5179 by 687, we get 7 with a remainder of 370.
Use 7 as the next digit of our solution. 
Result so far: 227.0
Subtracting 4809 from 5179 leaves us with 370.
Append the next digit (9) from the dividend to 370 and continue with: 3709 / 687

Step 7:
687 can be fit into 3709 5 times, resulting in a remainder of 274.
Record the quotient 5 as the next digit in the result. 
Result so far: 2275.0
If we take 3435 away from 3709, we end up with 274.
Take the next digit (1) from the dividend and append it to 274, then repeat: 2741 / 687

On to step 8:
If we divide 2741 by 687, we get 3 and a remainder of 680.
Write down 3 as next digit of the result. 
Result so far: 22753.0
Subtracting 2061 from 2741 leaves us with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Step 9:
687 can be fit into 6800 9 times, resulting in a remainder of 617.
Record the quotient 9 as the next digit in the result. 
Result so far: 22753.9
Deduct 6183 from 6800 and we're left with 617.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

Advancing to step 10:
The number 687 fits into 6170 8 times, leaving a remainder of 674.
Record the quotient 8 as the next digit in the result. 
Result so far: 22753.98
If we take 5496 away from 6170, we end up with 674.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6740, and continue the process.

Let's proceed to step 11:
687 goes into 6740 9 times with a remainder of 557.
Put 9 as the next digit of the answer. 
Result so far: 22753.989
Deduct 6183 from 6740 and we're left with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Moving on to step 12:
The number 687 fits into 5570 8 times, leaving a remainder of 74.
The next digit of our result is 8. 
Result so far: 22753.9898
Deduct 5496 from 5570 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 13:
When dividing 740 by 687, we get 1 with a remainder of 53.
Put 1 as the next digit of the answer. 
Result so far: 22753.98981
The remainder is 53 after subtracting 687 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 14:
687 goes into 530 0 times with a remainder of 530.
Use 0 as the next digit of our solution. 
Result so far: 22753.98981
Subtracting 0 from 530 leaves us with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

On to step 15:
687 can be fit into 5300 7 times, resulting in a remainder of 491.
Use 7 as the next digit of our solution. 
Result so far: 22753.9898107
Deduct 4809 from 5300 and we're left with 491.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4910, and continue the process.

Let's proceed to step 16:
If we divide 4910 by 687, we get 7 and a remainder of 101.
The next digit of our result is 7. 
Result so far: 22753.98981077
If we subtract 4809 from 4910, we get 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

In conclusion, the division gives 22753.98981077 with a balance of 1.01e-07.